I don't think it's possible for john to be both a councillor and an mp and do both jobs properly. He should give one up - presumably his council seat.
I was merely pointing out that the practice is widespread through parliament in different ways, but with the same result.
For what it's worth, though, why you should expect fulltime councillors? Surely councillors are supposed to be members of the community, not paid employees of the community, and just get expenses?
There's also an argument for mps being part timers too, whose role is to set overall policy and oversee the fulltime executive (Civil Service). There's a lot to be said for doing that, rather than having politicians with relatively little experience of the real world.
